Doosan DX480LC - Upper Roller

SP001741
Page 13
Track Assembly
Upper Roller
FG000509
6
5
43
2
1
Figure 6
No. Check Item Standard Dimension
Recommended Limit for
Maintenance
Limit for Use
(Repair - P or
Replace - R)
1
Outside Diameter of
flange
175 mm
(6.890")
2
Outside Diameter of
Tread
142 mm
(5.591")
135 mm
(5.315")
130 mm [P]
(5.118")
3 Width of Tread
45 mm
(1.772")
52 mm
(2.047")
54 mm [P]
(2.126")
4 Width of Flange
18.5 mm
(0.728")
5
Clearance between
shaft and bushing
Standard
Dimension
Tolerance
Standard
Interference
Repair
Limit
Shaft Hole
55 mm
(2.165")
-0.01
-0.03
+0.37
+0.33
0.34 - 0.40
6
Interference between
roller and bushing
Standard
Dimension
Tolerance
Standard
Interference
Repair
Limit
Shaft Hole
65 mm
(2.559")
+0.125
+0.090
+0.030
0.0
0.06 - 0.125